Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression

/
/
gm

Test String

Code Generator

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)^acl\s(?P<acl_name>[^.\s]+)\s+\w+\s(?P<dest_domain>[-a-zA-Z0-9@:%._\+~#=]{1,256})" Local $sString = "# log_mime_hdrs on" & @CRLF & _ "" & @CRLF & _ "# Turn off caching" & @CRLF & _ "cache deny all" & @CRLF & _ "" & @CRLF & _ "# Disable ICMP pinger" & @CRLF & _ "pinger_enable off" & @CRLF & _ "" & @CRLF & _ "# Consult local hosts file" & @CRLF & _ "# hosts_file /etc/hosts" & @CRLF & _ "" & @CRLF & _ "# Set squid pidfile location" & @CRLF & _ "pid_filename /var/run/squid/squid.pid" & @CRLF & _ "" & @CRLF & _ "# Set squid access logging location and use more human-readable format" & @CRLF & _ "access_log stdio:/var/log/squid/access_combined.log logformat=combined" & @CRLF & _ "access_log daemon:/var/log/squid/access_default.log logformat=squid" & @CRLF & _ "" & @CRLF & _ "# Set cache logging location" & @CRLF & _ "cache_log /var/log/squid/cache.log" & @CRLF & _ "" & @CRLF & _ "# Do not allow caching me" & @CRLF & _ "F5 BIG-IQ" & @CRLF & _ "# Mgmt Self-Outside" & @CRLF & _ "acl $masked_host$ src 20.20.30.4/32 160.11.44.56/32 # F5 BIG-IQ" & @CRLF & _ "acl $masked_host$ src 20.20.30.132/32 160.11.44.184/32 # F5 BIG-IQ" & @CRLF & _ "" & @CRLF & _ "# External F5" & @CRLF & _ "# Mgmt Self-Outside Floating-Outside Self-Inside Floating-Inside" & @CRLF & _ "acl $masked_host$ src 160.11.42.8/32 192.160.223.74/32 160.11.42.142/32 # External F5 BIG-IP" & @CRLF & _ "acl $masked_host$ src 160.11.43.8/32 192.160.224.74/32 160.11.43.142/32 # External F5 BIG-IP" & @CRLF & _ "" & @CRLF & _ "# External F5" & @CRLF & _ "# Mgmt Self-Outside Floating-Outside Self-Inside Floating-Inside" & @CRLF & _ "acl $masked_host$ src 160.11.42.4/32 192.160.223.4/32 192.160.223.46/32 160.11.42.132/32 160.11.42.140/32 # External F5 BIG-IP" & @CRLF & _ "acl $masked_host$ src 160.11.42.6/32 192.160.223.5/32 192.160.223.46/32 160.11.42.138/32 160.11.42.140/32 # External F5 BIG-IP" & @CRLF & _ "acl $masked_host$ src 160.11.43.4/32 192.160.224.4/32 192.160.224.46/32 160.11.43.132/32 160.11.43.140/32 # External F5 BIG-IP" & @CRLF & _ "acl $masked_host$ src 160.11.43.6/32 192.160.224.5/32 192.160.224.46/32 160.11.43.138/32 160.11.43.140/32 # External F5 BIG-IP" & @CRLF & _ "" & @CRLF & _ "acl github_domains dstdomain .github.com" & @CRLF & _ "acl clamav_domains dstdomain .clamav.net" & @CRLF & _ "acl mozilla_org_domains dstdomain .mozilla.org" & @CRLF & _ "acl mozilla_net_domains dstdomain .mozilla.net" & @CRLF & _ "acl mozilla_com_domains dstdomain .mozilla.com" & @CRLF & _ "acl google_domains dstdomain .google.com" & @CRLF & _ "acl google_apis_domains dstdomain .googleapis.com" & @CRLF & _ "acl powershell_domains dstdomain .digicert.com" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm